SNR22210EAKB33J30Spherical Roller Bearing – Double Row, 1:12 Tapered Bore, 50 mm ID, 90 mm OD, 23 mm Width, Open, W33 Lubrication Groove, C3 Internal Clearance

Product Description

What this part is: SNR 22210EAKB33J30 double-row spherical roller bearing. Series: 22200. Base Number: 22210. Bore: 50 mm. Outside Diameter: 90 mm. Overall Width: 23 mm. Number Of Rows: 2. Rolling Elements: Spherical Roller. Bore Type: Tapered 1:12. Closure Type: Open. Cage Material: Pressed Steel. Cage Type: Pressed. Internal Clearance: C3. Precision Class: ABEC 1 / ISO P0. Bearing Material: Chrome steel. Item Weight: 1.32 lb (0.60 kg). Design Units: Metric. Unit Quantity: 1 Pc. GTIN: 3413520082352. Decoding the designation: 222 is the double-row spherical roller medium width series and the bore code 10 gives a 50 mm bore. EA marks the reinforced high-capacity execution with a pressed steel cage. K is the 1:12 tapered bore. B33 is the SNR form of the W33 lubrication feature — an annular groove machined in the outer ring outside diameter with three radial holes through to the rolling elements. J30 is the SNR clearance code for C3, greater than normal. The part is also marked 22210 EA K W33 C3, 22210EAKW33C3 and 22210EKJ W33 C3. What these specs mean in practice: Two rows of barrel-profile rollers run on a common sphered outer raceway, so the bearing takes up angular misalignment between two shaft supports while carrying heavy radial load and thrust in either direction. Dynamic Load Rating: 104 kN (23,380 lbf). Static Load Rating: 108 kN (24,279 lbf). Limiting Speed: 7500 rpm. Maximum Operating Temperature: 200°C. Running Accuracy — Radial And Axial Runout: Normal. C3 clearance suits a tapered-bore mounting drawn up its seat and a shaft running hotter than its housing, both of which consume running clearance. Lubrication feature: Relubrication: B33 — an outer-ring lubrication groove with three radial holes, the SNR equivalent of W33. Lubricant: grease or oil. The groove distributes lubricant circumferentially around the outer ring and the three radial holes carry it inward to the centre of the roller path. Bore form and adapter sleeve: The bore is tapered 1:12 with a 50 mm large-end diameter, so it seats on an adapter sleeve whose tapered outside diameter is 50 mm. That sleeve is the H310, which carries a 45 mm cylindrical shaft seat, together with a KM 10 locknut and an MB 10 lock washer. Drawing the bearing up the sleeve taper sets the radial internal clearance by controlled inner-ring expansion, which is what makes a tapered-bore spherical roller mountable on a plain unstepped shaft. Quantity and configuration: Unit Quantity: 1 Pc. One complete double-row spherical roller bearing, open on both faces. Interchange guidance: Cross-Reference: SKF 22210 EK and NSK 22210EAKE4 are tapered-bore 22210 executions without the W33 groove. Harmonization Code: 8482.30.00.